c语言删除字符串空格

#include<stdio.h>
void delete(char *str)
{
    char *search=str;//遍历整个字符串
    char *record=str;//记录非空格字符串
    while(*search)
    {
        if(*search!=' ')//如果不是空格，就往record里加
        {
            *record=*search;
            record++;
        }
        search++;//是空格时search再往后找
    }
    *record='\0';//再在字符串后面自动补0
}
int main()
{
    char ch[]=" k il l fa fa";
    delete(ch);
    printf("%s",ch);
    return 0;
}